The fan radar allows promoters to easily check the popularity of an artist on several social media platforms. As an artist click on the network specific buttons and add your pages at SoundCloud, Facebook, YouTube and Twitter. That way you provide promoter with valuable insight on your status quo in those networks and promoters save a lot of time because they don't have to manually research those numbers.
Apparently, to connect the different services you'll need the login data for all of them. Your data will only be used internally for the fan radar and nothing else. There won't be any posts by gigmit on any dashboard or wall of one of these social media platforms.